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The H12-821_V1.0 exam covers a wide range of topics related to data communication core technology, including network architecture, routing protocols, MPLS VPN technology, and network security. H12-821_V1.0 Exam is designed to test candidates' abilities to design, implement, and troubleshoot complex data communication networks using Huawei products and solutions.
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The HCIP-Datacom-Core Technology V1.0 certification exam is an essential step for anyone who wants to be recognized as a professional in the field of networking technology. It is an advanced-level exam that focuses on the core networking technologies that are used in modern data communication networks. H12-821_V1.0 Exam covers everything from IPv4 and IPv6 addressing to advanced routing protocols, including BGP and OSPFv3. H12-821_V1.0 exam ensures that candidates have the knowledge and expertise required to design, configure, and maintain complex data communication networks.
NEW QUESTION # 122
The development of technology and applications has promoted the arrival of the Wi-Fi6 era. Which of the following descriptions of the high performance of Wi-Fi6 are correct? (Multiple choice)
Answer: C,D
NEW QUESTION # 123
Which of the following is the multicast MAC address corresponding to the multicast address 224.011?
Answer: D
NEW QUESTION # 124
Which of the following information does the BGP Open message carry? (Multiple choice)
Answer: B,C,D
NEW QUESTION # 125
Which of the following is the default dead time of an interface on an OSPF P2P or broadcast network?
Answer: C
Explanation:
Thedefault Hello intervalon an OSPF P2P (Point-to-Point) or Broadcast network is10 seconds, and thedefault Dead intervalis40 seconds.
The Dead interval is the time a router waits without receiving a Hello packet from a neighbor before declaring it down.
Reference from Huawei HCIP-Datacom-Core Technology Study Guide:
"For broadcast and P2P network types, the default Hello interval is 10 seconds and the Dead interval is 40 seconds." (Chapter: OSPF Interface Types - Section: OSPF Timers)
NEW QUESTION # 126
On the OSPF network shown in the figure, R1, R2, and R3 run OSPF, and R1 advertises four VPN routes to OSPF. A filter-policy needs to achieve the following goal: R1's and R3's routing tables contain the routes to 192.168.3.0/24, but R2's routing table does not. Which of the following filter-policies cannot meet this requirement?
Answer: B
Explanation:
* Goal Analysis:
* Requirement:
* The route to 192.168.3.0/24 must exist in R1's and R3's routing tables.
* The route must not exist in R2's routing table.
* This requires filtering to ensure the route is either:
* Blocked on R2's routing table (via filtering on R2), or
* Blocked before it is advertised to R2.
* Analysis of Each Option:
* Option A (Filter-policy on R2 for filtering received routes):
* Applying a filter-policy on R2 to filter received routes will block the route from entering R2's routing table but still allow it to propagate to R3.
* This meets the requirement.
* Option B (Filter-policy on R2 for filtering the routes to be advertised):
* Blocking the advertisement of routes from R2 to other routers does not affect the routes received by R2 itself.
* This does not meet the requirement but does not affect the propagation to R3.
* This is valid if the received route is blocked.
* Option C (Filter-policy on R1 for filtering the routes to be imported):
* If the route is filtered on R1 during the import phase, the route will not exist in R1's routing table and thus cannot be advertised to either R2 or R3.
* This fails to meet the requirement because the route must exist in R1's and R3's routing tables.
* Option D (Filter-policy on R1 for filtering the imported routes to be advertised):
* Filtering routes on R1 before advertising to R2 will prevent R2 from receiving the route but allow R1 to advertise the route to R3.
* This meets the requirement.
* Correct Option:
* C (Filter-policy on R1 for filtering the routes to be imported): This will prevent the route from existing in both R1 and R3, violating the stated requirement.
References:
* HCIA-Datacom Study Guide, Chapter: OSPF Route Filtering
* Huawei OSPF Configuration and Filtering Methods
NEW QUESTION # 127
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